Free 173 Best Homemade Tools eBook:  
Become a founding member: 500+ tool plans, full site access, and more.

User Tag List

Results 1 to 10 of 10

Thread: Gear repair

  1. #1
    Supporting Member Vyacheslav.Nevolya's Avatar
    Join Date
    Dec 2015
    Location
    Ukraine
    Posts
    386
    Thanks
    115
    Thanked 1,093 Times in 295 Posts

    Vyacheslav.Nevolya's Tools

    Gear repair

    Hi. Sometimes it's a very unpleasant situation when it's impossible to quickly find a new gear. I decided to restore the gear, maybe this is not the best way, but for some time it should work.

    Gear repair-img_20170623_143529.jpg

    I weld a damaged tooth with an electric arc welding

    Gear repair-img_20170623_145326.jpg

    Then after 10-15 minutes of working with this tool)))

    Gear repair-img_20170623_201034.jpg

    Result. The gear is almost new

    Gear repair-img_20170623_152738.jpg

    Gear repair-img_20170623_152751.jpg

    173 Best Homemade Tools eBook

  2. The Following 23 Users Say Thank You to Vyacheslav.Nevolya For This Useful Post:

    Andyt (06-22-2018), billster (02-24-2018), clydeman (10-20-2020), Duke_of_URL (10-21-2020), greyhoundollie (10-18-2018), katy (10-21-2020), lassab999 (10-21-2020), LMMasterMariner (06-24-2017), mwmkravchenko (10-20-2018), NortonDommi (06-21-2018), nova_robotics (10-20-2020), Okapi (01-18-2019), olderdan (06-23-2017), Papa Bill (06-22-2018), Paul Jones (06-24-2017), rgsparber (02-24-2018), rlm98253 (06-21-2018), Seedtick (06-23-2017), sossol (02-25-2018), stainless stål (06-25-2017), tonyfoale (02-25-2018), Toolmaker51 (06-21-2018), volodar (06-22-2018)

  3. #2
    Supporting Member olderdan's Avatar
    Join Date
    Jun 2016
    Posts
    674
    Thanks
    1,279
    Thanked 1,269 Times in 413 Posts

    olderdan's Tools
    Another brilliant exercise in resourcefulness, well done.
    I would be interested in why such robust gears got damaged, I seem to remember they were from a motorcycle gearbox.
    Regards
    Olderdan

  4. #3
    Supporting Member Frank S's Avatar
    Join Date
    Aug 2015
    Location
    Peacock TX
    Posts
    6,479
    Thanks
    810
    Thanked 5,010 Times in 2,436 Posts

    Frank S's Tools
    Good job, nothing wrong with the method.
    I used to have to sit for hours and sometimes more than 2 or 3 days at time building up the worn teeth on 3 and 4 ft diameter gears for oil field equipment then spend days as in several hand grinding the profiles of the very large teeth to some semblance of what I thought the original profile should be. A 150 lb 20 tooth pinion gear was bad enough but the 2000 lb ring gear for a 30" rotary table meant a minimum of 100 lbs of electrodes
    Never try to tell me it can't be done
    When I have to paint I use http://kbs.justoldtrucks.com/

  5. The Following 5 Users Say Thank You to Frank S For This Useful Post:

    greyhoundollie (10-18-2018), NortonDommi (06-21-2018), Paul Jones (06-24-2017), PJs (06-22-2018), volodar (06-22-2018)

  6. #4
    Supporting Member
    Join Date
    May 2013
    Posts
    38
    Thanks
    51
    Thanked 7 Times in 7 Posts
    Quote Originally Posted by Frank S View Post
    A 150 lb 20 tooth pinion gear was bad enough but the 2000 lb ring gear for a 30" rotary table meant a minimum of 100 lbs of electrodes
    Whoa! ---Joe

  7. #5
    Supporting Member Vyacheslav.Nevolya's Avatar
    Join Date
    Dec 2015
    Location
    Ukraine
    Posts
    386
    Thanks
    115
    Thanked 1,093 Times in 295 Posts

    Vyacheslav.Nevolya's Tools
    Quote Originally Posted by olderdan View Post
    I would be interested in why such robust gears got damaged, I seem to remember they were from a motorcycle gearbox.
    Olderdan
    Gears from a motorcycle and a car. The reason for the breakage is very simple, There was a nut in the gearbox, it hit the tooth and locked the gears.

  8. The Following 6 Users Say Thank You to Vyacheslav.Nevolya For This Useful Post:

    greyhoundollie (10-18-2018), mwmkravchenko (10-20-2018), olderdan (06-24-2017), Papa Smurf (06-26-2017), Paul Jones (06-24-2017), PJs (06-22-2018)

  9. #6
    Content Editor
    Supporting Member
    DIYer's Avatar
    Join Date
    Aug 2013
    Posts
    3,088
    Thanks
    579
    Thanked 1,416 Times in 1,270 Posts


    Thanks Vyacheslav.Nevolya! We've added your Gear Repair Method to our Miscellaneous category,
    as well as to your builder page: Vyacheslav.Nevolya's Homemade Tools. Your receipt:




  10. #7

    Join Date
    May 2015
    Posts
    4
    Thanks
    14
    Thanked 4 Times in 1 Post
    Very nice work.

  11. #8
    Supporting Member VinnieL's Avatar
    Join Date
    Feb 2018
    Posts
    281
    Thanks
    30
    Thanked 111 Times in 85 Posts
    Years ago I had a steering gear in a collector I.H. Cub tractor with a broken tooth. This was before I had a welder etc. Took it to a machine shop and that was how they fixed it. It outlasted the rest of the tractor.

  12. The Following User Says Thank You to VinnieL For This Useful Post:

    greyhoundollie (10-18-2018)

  13. #9
    Supporting Member
    Join Date
    Dec 2016
    Posts
    260
    Thanks
    3
    Thanked 96 Times in 78 Posts
    Vyacheslav, I have done a similar repair job on a big lathe years ago. But friend, I have to tell you, that you are a recycling sorcerer! You can turn a sows ear into a silk purse. I have worked with Russians and Ukrainians and you people are some of the most resourceful people I have ever met!

  14. #10
    Supporting Member
    Join Date
    Oct 2016
    Posts
    499
    Thanks
    7
    Thanked 125 Times in 85 Posts

    old kodger's Tools
    I also have played this gig, one tooth missing on the main drive gear of an 8 foot gillotine, 3 feet in diameter and 4 inches wide, cast steel, the teeth were half inch thick at the root so i drilled and tapped a row of holes , screwed in mid tempered (grade 5) bolts welded them all together then reprofiled the tooth. I heard from another employee that it was still working long after I left the company


    Post your reply!
    Join 42,532 of us and get 500+ tool plans, tool eBooks, build guides, and much more.



    eBooks for Supporters

  15. The Following User Says Thank You to old kodger For This Useful Post:

    bigtrev8xl (10-21-2020)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •